--- a/config.tests/unix/ptrsize.test	Tue Jul 06 15:10:48 2010 +0300
+++ b/config.tests/unix/ptrsize.test	Wed Aug 18 10:37:55 2010 +0300
@@ -10,7 +10,7 @@
 
 # build and run a test program
 test -d "$OUTDIR/config.tests/unix/ptrsize" || mkdir -p "$OUTDIR/config.tests/unix/ptrsize"
-"$OUTDIR/bin/qmake" -nocache -spec "$QMKSPEC" "$SRCDIR/config.tests/unix/ptrsize/ptrsizetest.pro" -o "$OUTDIR/config.tests/unix/ptrsize/Makefile" >/dev/null 2>&1
+"$OUTDIR/bin/qmake" -nocache -spec "$QMKSPEC" "QT_BUILD_TREE=$OUTDIR" "$SRCDIR/config.tests/unix/ptrsize/ptrsizetest.pro" -o "$OUTDIR/config.tests/unix/ptrsize/Makefile" >/dev/null 2>&1
 cd "$OUTDIR/config.tests/unix/ptrsize"
 
 if [ "$VERBOSE" = "yes" ]; then